Double Peak Tungsten Heater
1. What Is a Double Peak Tungsten Heater?
A double peak tungsten heater is a tungsten heating element fabricated from high-purity tungsten wire or doped tungsten wire through precision bending and forming processes, creating a dual symmetrical peak (double-arch) structure. It is also referred to as a double arch tungsten heater. The structure consists of two continuous or symmetrical peak heating zones and terminal leads. Compared with a single peak design, the double peak structure provides a larger effective heating area and a more uniform thermal field distribution, making it suitable for medium-to-high load or multi-point evaporation applications.
2. Features of CTIA’s Double Peak Tungsten Heater
(1) High-temperature resistance: Tungsten has a melting point of approximately 3420°C, maintaining structural stability under high-vacuum and high thermal load conditions without melting or failure.
(2) High heating efficiency: The dual-peak structure provides a larger heating and loading area, improving evaporation efficiency.
(3) Uniform thermal field: The dual heating zone design ensures more balanced temperature distribution, improving film uniformity.
(4) Structural stability: Enhanced mechanical support reduces deformation or collapse at high temperatures.
(5) Stable electrical performance: Consistent resistance characteristics enable precise control of heating power.
(6) Low contamination: Low vapor pressure minimizes contamination in high-vacuum environments, making it suitable for ultra-clean coating processes.
3. Applications of CTIA’s Double Peak Tungsten Heater
(1) Metal evaporation coating: Used for evaporation of aluminum, chromium, gold, and other metals under high-vacuum conditions, ensuring stable deposition.
(2) Optical thin-film deposition: Applied in anti-reflection coatings, reflective coatings, optical filters, and protective films with precise thickness control.
(3) Plastic and decorative coating: Used for metallization of polymers such as Polypropylene (PP) and Polycarbonate (PC).
(4) Large-scale industrial coating: Applied in continuous vacuum coating processes for mobile phone housings, cosmetic packaging, automotive lamps, and decorative components.
(5) Flat panel display technology: Used for deposition of functional films and conductive layers in display panels.
(6) Optical system manufacturing: Applied in metal coating of large-diameter lenses, reflectors, and optical filters.
(7) Electro-acoustic devices: Used for surface metallization of speaker diaphragms and electro-acoustic components.
(8) Laboratory applications: Serves as an evaporation source in Physical Vapor Deposition (PVD) systems for research and development.
4. Specifications of CTIA’s Double Peak Tungsten Heater
(1) Material: High-purity or doped tungsten wire.
(2) Wire diameter: 0.2–1.5 mm.
(3) Structural parameters: Peak height, span, overall length, and lead length customizable.
(4) Structure type: Double peak, multi-peak or hybrid structures available.
(5) Strand configuration: Single wire or multi-strand twisted wire.
(6) Surface condition: Chemical cleaning or electrolytic polishing.
With over 30 years of expertise in tungsten heater manufacturing, CTIA GROUP delivers advanced engineering design and precision manufacturing solutions by optimizing key parameters including tungsten wire diameter, doping type and content, double peak geometry, overall length, and support positions based on application requirements, vacuum conditions, material properties, and equipment constraints, while integrating surface treatments such as chemical cleaning and electrolytic polishing to provide fully customized end-to-end solutions from material selection and structural design to precision fabrication.
For any inquiry, please contact tungsten heater manufacturer: CTIA GROUP
Email: sales@chinatungsten.com
Tel: 0086 592 5129696 / 0086 592 5129595
Website: www.tungsten.com.cn
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